Treatment of compost leachate using electrochemical process

Compost leachate (CL) is a liquid by-product generated during composting that poses a significant environmental risk due to its ability to contaminate surface and groundwater. This research explores an innovative CL treatment strategy by integrating two complementary processes: ammonia stripping (AS) and electrooxidation (EO). The study proposes two approaches: the first is to apply ammonia stripping and electro-oxidation separately to optimise their performance; the second is to combine them in a single reactor system to improve efficiency and cost-effectiveness. In the initial phase, the EO process will be optimised by adjusting key parameters such as current density and reaction time. At the same time, an AS reactor will be used to assess its ability to remove ammonia, by optimising its operating conditions, including pH, reaction time, temperature and aeration, in order to improve performance. The final phase of the study introduces a new single reactor system that integrates OE and AS. The combination of these approaches improves both efficiency and operation, optimising costs and performance.

Faculty Supervisor:

Jean-François Blais

Student:

Partner:

Centre technologique des résidus industriels

Discipline:

Engineering

Sector:

Administrative and support, waste management and remediation services; Agriculture; Professional, scientific and technical services

University:

Université du Québec : Institut national de la recherche scientifique

Program: